Means for locking a door



Feb. R8, QS. Mq STQNE 2,031,552

MEANS FOR LOCKING A DOORy Filed Feb. 19, .1954

ff &`z4 Inventor Patented Feb. 18, 1936 UNITED STATES vPATlazNr OFFICE 5 Claims.

My invention relates generally to means for locking a door from the outside, so that the outside of the door is characterized by a complete absence of fixtures which would indicate the presence of locking means for the door.

An important object of my invention is to provide means of locking a door from the outside while the door is slightly open, and wherein, following the locking of the door, the door is completely closed to hide the locking means proper.

Other objects and advantages of my invention will be apparent from a reading of the following description in connection with the drawing, wherein for purposes of illustration I have shown a preferred embodiment of my invention.

Figure 1 is a horizontal sectional view taken through a doorway and the door mounted therein showing the application of an embodiment of the invention thereto.

Figure 2 is an elevational view of a portion of the inside of the doorway and of the door, taken from the bottomy of Figure 1.

Figure 3 is a vertical tranverse sectional view taken through Figure 2 approximately on the line 3 3.

Figure 4 is a horizontalisectional view taken through Figure 2 approximately on the line 4-4 and looking downwardly in the direction of the arrows.

Referring in detail to the drawing, the numeral 5 generally designates. an ordinary door which is hinged as indicated at 6 at one side to a door post I and adapted to swing closed and engage an opposite door post 8. Ledges 9, I8 on the door posts prevent the door from swinging outwardly beyond th-e closed position, but permit inward swinging of the door 5.

In accordance with the invention I mount a channel-shaped fixture II on the inside of the door near the free edge thereof in a horizontal position as shown in Figure 2. The outer end of the channel fixture is closed but the inner end is open as indicated at I2. Sliding in the channel of the said fixture and insertable from the open end I2 is a generally horizontally disposed bolt I3, which has the square head confined by this arrangement in the channel fixture and the stem portion I5 thereof extending through the slot I6 of the said fixture. On the opposite end of the stem portion I5 is another-squared head I'I which is adapted to prevent the removal from the stem I5 of a J-shaped member I8 which has an opening I9 receiving the stem portion I5 in the manner indicated in Figure 3.

rOn the doory post 8 at the inner side thereof and on a level with the channel fixture I I is the anchor 20 which is suitably secured as by bolts o-r screws 2I in a manner similar to the manner in which the channel fixture I I is secured to the 5 door. The anchor consists of a plate 22 traversed by the mounting screw 2I which has a right angular tubular portion 23 into which is tobe slidably received the end portion 24 of the J-shaped member I8. This portion of the J -shaped member I 8 is provided with a lock hasp receiving hole 25 which is adapitedto be registered with lock haspl receiving holes 26, 21 in the spaced sides of the tubular portion 23, so that the hasp 28 of an ordinary padlock 29 when passed through the described holes in the anchor and J-shaped member will lock the J-shaped member securely to the anchor.

It will be` obvious that the capability of the bolt I3 to slide in the channel fixture, and the capability of the J.-shaped member to slide and pivot on the bolt I3 gives a certain amount of freedom to the J-shaped member I8 in connecting and disconnecting the same from the anchor.

The J-shape of the J-shaped member and the inward extending arrangement of the bolt I3 permitsl the parts to give the door 5 freedom to be swung inwardly as indicated in do-tted lines in Figure 1 until the door engages the J-shaped member and forces the same inwardly until the J-shaped member engages the inner head I'I of the bolt I3 and is held against further movement by the connection with the anchor afforded by the padlock 29. By reason of the arrangement shown the door cannot be swung farther inwardly than the dotted line position shown in Figure 1 and described above. The door is permitted to swing inwardly when the lock is engaged only a sufficient distance to make an opening between the door and the door post 8 to permit placing and removing of the padlock 29, so that the door is held fast against. intruders until the lock can be opened or the parts of the locking means destroyed, in this way affording time in which the police can be notified of the intrusion. It is obvious that the device of the invention may be attached toi any door in addition to the regular locking means which usually has a portion exposed at the outside of the door, thereby affording a double and an unexpected protection, since the locking means of the invention cannot be seen from the outside of the door as is the case with the usual lock.

Although I have shown and described herein a preferred embodiment of my invention, it is to be deinitely understood that I do not desire to limit the application of the invention thereto, and any change or changes may be made in material and structure and arrangement of parts within the spirit of the invention and the scope of the subjoined claims. For instance there may be substituted for the padlock arrangement a locking anchor 20 in which the end of the J-shaped member directly locks; the shape of the J-shaped member may be other than J-shaped as required by circumstance, the `main idea being to provide for the required movement of the door; and a chain might be substituted for .the J -shaped member.

What is claimed isz- 1. A device of the character described comprising a rst anchor iixed to a door post, a second anchor xed to the free edge of a door adjacent the iirst anchor, a flexible arm connected to and between said anchors, said flexible arm comprising a iirst relatively rigid link relatively rigidly and separably connected at one end to said rst anchor and being formed with a hole through its opposite end, and a second relatively rigid link loosely slidable through said hole, one end of said second link being slidably connected to said second anchor for movement along said second anchor and the opposite end of .said second link being provided with a stop to limit the sliding of the first link thereon in a direction away from said second anchor.

2. A device of the character described comprising a irst anchor iixed to a door post, a second anchor fixed to the free edge of a door adjacent the rst anchor, a flexible arm connected to and between said anchors, said flexible .arm .comprising a rst relatively rigid link adapted to be connected at one end to said rst anchor by a lock and being formed with a hole through its opposite end, and a second relatively rigid link loosely slidable through said hole, .one end of said second link being slidably vconnected to said second anchor for movement along said second anchor and the opposite end of said second link being provided with a stop to limit .the sliding of the first link thereon `in a direction away from said second anchor.

3. A device of the characterxdescribed comprising a iirst anchor for attachment to Va door post, a second anchor for attachment toa door near the free edge thereof, a flexible arm connected to and between said anchors permitting partial opening of the door'only, said iiexible arm comprising a bar relatively rigidly connected at one end to said first anchor and extending from said rst anchor to a position alongside of said second anchor, the opposite end of said bar being formed with a hole, and a rod extending outwardly from said second anchor and slidably through said hole in said bar, the inner end of said rod being slidably connected to said second anchor for limited movement along said second anchor in directions toward and away from the free edge of the door, a head on the outer end of said rod limiting the sliding of said bar on said rod in an outward direction.

4. A device of the character described comprising a first anchor for attachment to a door post, a second anchor for attachment to a door Anear the free edge thereof, a flexible arm connected to and between said anchors permitting partial opening of the door only, said flexible arm comprising a bar relatively rigidly connected at one end to said first anchor and extending from said first anchor to a position alongside of said second anchor, the opposite end of said bar being formed with a hole, and a rod extending outwardly from said second anchor and slidably through said hole in said bar, the inner end of said rod being slidably connected to said second anchor in directions toward and `away from the free edge of the door, a head on the outer end of said rod limiting the sliding of said bar on said rod in an outward direction, said opposite end of the bar lying in a plane sufficiently outwardly spaced from the door when closed to permit the door to be opened to a limited extent.

5. A device of the class described comprising a horizontally extending elongated member, `adapted to be connected to a door adjacent the free edge of the door, said member having a longitudinally extending guide-way therein, a rod having a head at one end slidably arranged in the guide-way and a head at the other end, a substantially J-shaped member having a hole in one end through which the rod passes, a member adapted to be attached to a door frame and having a tubular part for receiving the other end of .the J-shaped member, said tubular part and the said other end of the J-shaped member having lock receiving openings therein.

MANDEL STONE. 

